Safety razor



1941. s. H, BENJAMIL 2,251,652

SAFETY RAZOR Filed Feb. 14,1940 3 Sheets-Sheet 1* ATTORNEY Au'g- 1941. s. H. BENJAMIN I 2, 2

I SAFETY RAZOR Filed Feb. 14, 1940 3 Sheets-Sheet 2 s; H. BENJAMIN SAFETY mzon Filed Feb. 14, 1940 3- Sheqts-Sheet '3 INVENTOR I ATTORNEY Patented Aug. 5, 1941 UNITED STATES PATENT OFFICE SAFETY RAZOR Sidney H. Benjamin, Milwaukee, Wis. Application February 14 1940, Serial No. 318,793

12 Claims.

My invention relates to safety razors and refers particularly to devices adapted for the ready disassociation of the razor guard and the razor cap from each other in order to allow themsertion and removal'of a razor blade therefrom.

-The greater portion of safety razors now on the -market comprise a handle removably abuttable upon the underside of a guard, which guard carries a number of openings, or depressions, to receive corresponding lugs,- or extensions, carried by the underside of a top, or cap, to act as blade positioning members, the under face of the cap carrying also an extended exteriorly threaded lug adapted to be passed through an opening in a blade and an opening in the guard and to be threaded with an interiorly threaded opening in the end of the handle.

When a user is desirous of placing a blade within a. safety razor of the described construc-. tion, he must place the cap upside-down upon a surface with the projecting blade-positioning lugs extending upwardly, must then position a blade upon this cap, must then' place the guard having no blade-positioning members upon the blade. being careful not to dislodge the blade from the blade-positioning lugs of the cap, and must then screw the lug of the cap, which extends through the blade and the guard, into the handle without dislocating or disturbing the first three mentione members of the razor.

- It will thus be noted that this operation is more or-less intricate and requires considerable care upon the part of the operator, especially as it incurs danger of serious cutting by means of the blade edges.

One of the objects of my invention is a safety razor in which it is not necessary to remove the vhandle from theguard during the process of .removing or inserting a. blade, thus reducing the number of separate parts of the razor during this process, and hence insuring a decreased-number of operations with consequent greater ease of operation and reduced danger of misplacement of the several'members of the razor.

Another object of my invention is a safety razor, in which the cap is entirely removed from contact or connection with the cap-opening mechanism during the release of the cap from contact with the upper face of the guard or the upper face of an inserted blade,- and allowing --the upper face of the guard to be fully exposed for the placement of a blade thereon, or for the removal of a blade therefrom.

Another object of my invention is .a safety razor in which the handle may be r'emovably attached to the under face of a guard while enabling the cap-removing mechanism to operate to remove the cap from contact with the guard, such cap-removing mechanism being removable from contact or connection with the cap during a complete removal of the cap from surface contact with the guard.

Another object of my invention is a safety razor in which the handle may be firmly, but

removably, attached to the guard, without attachment between the cap and the cap-operating mechanism.

Another object of my invention is a safety razor in which the cap-operating mechanism may be employed to release the \cap from blade clamping position and allow the removal or in sertion'of a blade without releasing the handle from the guard.

Another object of my invention is a safety razor in which the above described operations are adaptable to a razor construction in which the cap is entirely removed from the other elements of the razor or in which the cap is retained in hinged connection with the guard;

vice, partially broken away for purposes of y de-' scription, full lines indicating the device in shaving position, thebroken lines indicating the cap released from fixed abutment upon a blade positioned-uponthe upperi'face of the guard.

Figure 2 is an enlarged section through the line 2--2 of Figure 1.

Figure 3 is'*a longitudinal section of the device of Figure 1 in partial open position.

Figure 4 is-an enlarged detail of the hinge section of Figure 3.

Figure 5 is arfexploded view howing an end Figure 6 is a top plan view of the head elements of Figure 1 in complete open position.

Figure? is a top plan view of a modified form 8-.-8 of Figure 7, broken lines indicating the position of the cap in partly open position.

Figure 9 is an enlarged section through the line 9-8 of Figure '7.

Figure 10 is a top plan view of the head elements of Figure 7 in complete open position.

Figure 11 isa side view of a modified form of my device with the cap removed from the guard.

Figure 12 is an enlarged cross section of the upper portion of the device of Figure 11 in assembled position.

Figure 13 is an exploded view showing an end elevation of the head elements and a longitudinal section through the upper portion of the handle elements.

Figure 14 is a top plan viewof a modified form of my device in closed position.

When. the described device is in disassembled condition, the guard and cap, and blade, if desired, are positioned within the hollow. member 'of thehandle, and hence the device is externally represented by simply the members 20 and 26 comprising the handle.

To place the device in shaving position, the handle closure 2| is opened, the. hingedly attached guard and cap' and the blade are removed and Figure 15 is an enlarged cross section through i the line l5l5 of Figure 14.

Figure 16 is an exploded longitudinal section through the line lB-IB of Figure 14.

The. particular form of a device of my invention as shown in Figures 1 to 6, inclusive, comprises a handle having the hollow tubular member20, the lower end of which carries the removable closure 2|, the upper end of the handle below conical member 26 having the extended flange 21, the lower portion 28 of which is spun inwardly to form an annular race-way within which the flange 23 of the member 20 is readily revoluble, said race-way being preferably of slightly greater heighth than the heighth of the flange 23. The upper portion. of the member 26 .is interiorly threaded for purposes described later. The described portion of the device of my the closure 2| replaced. The handle is attached to the. guard 30 by inserting the exteriorly threaded stud 31 of the guard into the interiorly threaded portion 29 of the. conical member 26 of the handle-attaching member and revolving these two members with respect to each other until the handle-attaching member is firmly attached to the stud 3'! of the guard. It is to be noticed that at this time the cap-operating member is not attached to the cap, and that a blade may beinserted into the device. The blade 34 is now positioned upon thev upper face of the guard which can be held upright by the handle, and the cap 38 revolved upon its hinge until the exteriorly threaded portion 43 ofthe stud 42 enters the interiorly threaded portion 25 of the tubularmember 24 of the cap-operating member and the cap-operating member 20 is revolved with respect to the head members, which movement to be in fixed position with. respect to each other.

invention thus comprises a handle consisting of a handle-attaching member carrying a revoluble later described. A centrally positioned opening 36 extends through the guard 30 and a downwardly extended, exteriorly threaded member 31. The specific form of a razor head cap shown in the mentioned figures comprises the member 38 'haviri g the two terminally positioned downwardly extended members 39 and 40. The under face'of the cap member 38 has elongated recesses 4|, 4| ,to receive the studs 32, 32 of. the guard and a centrally positioned cap-attaching stud 42, the lower reduced portion 43 of which is exteriorly threaded.

The specific means shownin' the mentioned figures .for hingedly attaching the cap to the "guard, comprises an upwardly extended slot 44 between the cap flange 39, 40 into which the extended member 35 of the guard is inserted and a pintle 45 is passed through openings 'in the two extended members 39, 40 of the cap and the member 35 of the guard.

It is to be particularly noticed that during the above mentioned operations the handle is firmly afiixed to the guard while the cap is removed from guard contact, and that, therefore, when the handle is held upright the guard is in horizontal position for receiving a blade upon its blade positioning studs and that when the cap is revolved into position for clamping, the final operation ,for clamping is performed by a revolution of the member 20, during all of which operations the device is held in an upright position.

' This constructionof my razor, therefore,.facilitates the assembling of parts over the present generally employed razors, in which the blade must be placed separately upon the cap, the-guard placed upon the blade, and the handle attached to the cap in order to afiix the handle to the guard and assemble the elements of the razor.

It is to be further noted that when the capoperating member 20 is positioned to clamp the cap upon the blade and guard; it acts tofor m strong frictional contact between the flange 23 and the lower face of the member 21, thus holding the handle in firm attachment to the guard against accidental loosening;

It is to be further noted that while my handle is adapted to be firmly attached-to the guard independent of the action of the cap-operating means while allowing the cap to be clampedinto position independently of the guard-affixing means, the cap, blade and guard may all be replaced in theiroriginal. position with respect to each other.

It i evident that numerous changes of construction not specifically set forth in the figures may-be adopted without going beyond the scope of my invention. I Y

For instance, the exteriorly'threaded stud 42 the interiorly threaded tubular member 24 ofthe handle; or the blade positioning studs 32, 32 of the guard may be positioned upon the cap and the stud receiving recesses may be upon the guard, although 'I prefer the positions shown in the drawings as they allow of the placement of a blade upon the positioningstuds by .means of blade ejector magazines; also the teeth 3| 3| of the guard may be substituted by bar-shaped members; and other suitable substitutions may be made without going beyond the scope of my invention.

The modified form of my device illustrated in- Figures 7 to 10, both inclusive, is similar to the form of my device shown in Figures 1 to 6, both inclusive, with the following exceptions: the cap 38 has two extended blade-positioning members 50, 50 adapted to be positioned within the recess 5| of the guard 30 when the device is assembled in shaving position. The cap 38 also has four extendedlugs 52, 52, 52, 52 to assist in positioning the blade 53. Further'as the cap of threaded downwardly extended tubular stud internally peripheral with said opening, a cap having a downwardly extended externally threaded this form of my device does not carry the dey pendent end members 39, 40 of the device shown in Figures 1 to 6 to act as a hinge formation, in this construction the guard carries the two terminal arms 54, 5 4 and the cap 38 carries two downwardly extended arms 55, 55, these two sets of arms being connected by means of a,pintle 55.

Corresponding parts of the two described modifications of devices of my invention are represented by similar numerals in the two sheets of drawings and the operation of this device is similar to that described for the device of Figures 1 to 6. The modified form of a device of-my invention shown in Figures 11 to 13, both inclusive, is,

similar to that shown in Figures 1 to 6, both inclusive, except that the guard and cap are not attached to each other, and as all of the elements of this modified form are the same as those of the first described form, with the exception of the hinge elements, similar parts are' designated by similar numerals, and the descriptions of construction and operation of the firstdescribed form apply to the form shown in Figures 11 to 13. The modified form of a device of my invention shown in Figures 14 to 16, both inclusive, is similar to that modification shown in Figures 7 to 10, both inclusive, with the exception that the cap and guard are not attached to each other,'and as all of the elementsof this modified form are the same as those of the first described form, with the exce tion of the hinge elements, similar parts 'are designated by similar numerals, and the descriptidn of construction and operation of this described form, with the exception of the hinge element, apply to the form shown in Figures 14 to l6,'both inclusive.

It will thus be seen that because, of its novel construction, the razor of my invention possesses many valuable features not present in previously known razors, and thus presents a valuable advance in the art to which it is directed.

While I have shown and described the preferred form of my invention, it is obvious that modifications may be made in the structure disclosed without departing from the spirit of the invention defined in the following. claims:-

What I claim is:

1. A safety razor comprising a guard having a centrallypositioned opening and an externally stud adapted to extend through said guard openlower handle portion extended into said upper handle portion adapted to thread with said externally threaded cap stud and an extended annular flange carried bysaid elongated handle portion extending into and revoluble within said upperportion handle runway, said flange being vertically movable within said run-way.

2. A safety razor comprising a guard having a centrally positioned opening and an externally threaded downwardly extended tubular stud internally peripheral with said opening, a cap having a ownwardly extended externally threaded stud adapted to extend through said guard opening and its saidtubular stud; and a handle comprising an internally threaded upper portion, the upper portion of which is adapted to thread with said downwardly extended threaded tubular guard stud causing its abutment with said guardand having an annular recess rim-way within the lower portion thereof, and an internally threaded elongated lower handle portion extended into saidupper handle portion adapted to thread with said externally threaded cap stud and an extended annular. flange carried by said elongated handle portion extending into and revoluble within said upper portion handle run-way, said flange being vertically movable within said run-way.

3. A safety razor comprisinga guard havin'ga centrally positioned opening and an externally threaded downwardly-extended tubular 'stud internally peripheral with said opening, a cap having a downwardly extended externally threadedstud adapted to extend through said guard opening and its said tubular stud; and a handle comprising an internally threaded upper portion, the reduced upper portion of which is adapted to thread with said downwardly extended threaded tubular guard stud causing its abutment with said guard and having an annular recess runway within the lower portion thereof, and an internally threaded elongated lower handle portion extended into said upper handle portion adapted to thread with said externally threaded cap stud and an extended annular flange carried by said elongated handle portion extending into and revoluble within said upper portion handle run-way, said flange being vertically movable within saidrun-way.

4. A safety razor comprising a guard having a centrally positioned opening and an externally threaded downwardly extended tubular stud internally peripheral with said opening, a cap hingedly attached'to said guard and having a downwardly extended externally threaded stud adapted to extend through saidguard opening and its said tubular stud; and a handle comprising an internally threaded upper portion adapted to thread with said downwardly extended threaded tubular guard stud causing its abutment with said guard and having an annular recess run-way within the lower portion thereof, and an internally threaded elongated lower handle portion extended -into said upper handle portion adapted to thread with said externally internally'threadedupper portion, the upper portion of which is adapted to thread-with said downwardly extended threaded tubular. guard stud causing its abutment with said guard and having an annular recess run-way within the lower portionthereof, and an internally threadthreaded cap stud and an extended annular flange carried by saidelongated handle portion 8. A safety razor comprising a guard having a centrally positioned opening and an externally threaded downwardly extended tubular stud internally peripheral with said opening, a cap having a downwardly, extended externally threaded stud adapted to extend through said guard opening and its said tubular stud; and a handle com-.

prising an internally threaded upper portion, the

upper portion of which is adaptedto thread with said downwardly extended threaded tubular guard stud causing its abutment with said guard and having an annular recess run-way within the lower portion thereof, and an internally threaded elongated lower handle portion extended into said upper handle portion adapted to thread with said externally threaded cap stud and an extended annular flange carried by said elongated handle I portion extending into and revoluble within said upper portion handle runed elongated lower handle portion extended into said upper handle portion adapted to thread with .said externally threaded cap stud and an extended annular flange carried by said elongated handle portion extending into and revoluble within said upper portion handle run-way, said flange being vertically movable within said run-way.

6. A safety razor comprising a guard having a centrally positioned opening and an externally way; said flange being vertically movable within saidrun-way, the upperface of said elongated handle portion being in non-abutment with said guard when the upperface of said upper handle portion is in abutment with said guard.

9. A safety razor comprising a'guard having a centrally positioned opening and an externally threaded downwardly extended tubular studinternally peripheral with said opening, a cap havthreaded downwardly extended tubular studinternally peripheral with said opening, a cap hingedly attached-to said guard and having a downwardly extended externally threaded stud adapt ed to extend through said guard opening and its said tubular stud; and'a handle comprising an internally threaded upperportion, the reduced upsaid downwardly extended threaded tubular guard stud causing its abutment with said guard andhav'ing an annular recess run-way within the lower portion thereof, and an internally threaded. elongated lower handle portion extended into said upper handle portion adapted to thread with said externally threaded cap stud and an extendedannular flange carried by-said elongated handle portion extending into and: revoluble within-said upper portion handle run way, said flange being vertically movable within said run-way.

7 A safety razor comprising a guard having a centrally positioned opening and an externally threaded; downwardly extended tubular stud in-, ternally peripheral with said opening; a cap having a downwardly extended externally threaded stud adaptedto extend through said guard opening and its said tubular stud; and a handle comprising an internally threaded upper portion adapted to thread with said downwardly extendedthreaded tubular guard stud causing its. abutment with said guard and having an annular recess run-way within the lower portion thereof,

and an internally threaded elongated lower han-.

dle portion extended into said upper handle portion adapted to thread with said externally per portion of which is adapted to thread with Y,

a handle portion extended into said'uppei; handle threaded cap stud and. an extended annular flange carried by said elongated handle'portion extending into and revoluble within said upper portion handle run-way, said flange beingverti cally movable within said run-way, the upper face of said elongated handle portion being in I non-abutment with said guard when the upper face of said upper handle portion is in abutment with said guard. l

ing a downwardly extended externally threaded stud adapted to extend-through said guard o'pening and its said tubular stud and ahandle comprising-an internally threaded upper portion, the

reduced upper portion of which is adapted to thread with said downwardly extended threaded tubular guard stud causing its abutment with said guard and having an annular recess runway within the, lower portion thereof, and an internally threaded elongatedlowerhandle portion extended into said upper handle portion adapted to thread with said externally threaded cap stud and an extended annular flange carried by said elongated handle portion extending into and revoluble within said upper portion handle run-way, said flange being vertically movable within-said run-way, the upper face of said elongated handle portion being in non-abutment with said guard when the upper face of said upper handle portion is in abutment with saidguard. 10. A safety razorcomprising a guard having a centrally positioned opening and an externally threaded downwardly extended tubular stud internally peripheral with said opening, a 'cap hingedly attached to said 'guardand having a downwardly extended externally threaded stud adapted to extend through "said guard opening and its said tubular stud; and a handle comprising aninternally threaded upper portion adapted to thread with said downwardly extended threaded tubular guard stud causing its abutment with said guard and having an annular recess run-way within the lower portion thereof, and an internally threaded elongated lower portion-adapted to thread with said externally threaded cap stud and an extended annular flange carried by said elongated handle portion extend-ing into and revoluble within said upper portion handle run-way, said flange being vertically movable within said runway, the upper face,

of said elongated handle portion being in nonabutment with saidguard when the upper face of said upper handle portion is in abutment with said guard.

11. A safety razor comprising a guard; having a centrally positioned opening and an externally threaded downwardly extended tubular stud 1nternally peripheral with said opening, a cap hingedly attached to said'guardand having a downwardlyextended externally threaded stud adapted to extend through said guard opening and its said tubular stud; and a handle compris-y ed into said upper handle portion adapted to thread with said externally-threaded cap stud and an extended annular flange carried by said elongated handle portion extending into and revoluble within said upper portion handle runway, said flange being vertically movable within said run-way, theupper face of said elongated with said handle portion being in non-abutment guard when the upper face of said upper handle portion is in abutment with said guard.

12. A safety razor comprising a guard having a centrally positionedopening and an externally threaded downwardly extended tubular stud internally peripheral with said opening, a cap hingedly attached to said guard and having a downwardly extended externally threaded stud adapted to extend through said guard opening and its said tubular stud; and a handle comprising an internally threaded upper portion, the reduced upper portion of which is adapted to thread with saiddownwardly extended threaded tubular guard stud causingits abutment with said guard and having an annular recess run-way within the'- lower portion thereof, and an internally threa ded elongated lower handle portion extended into said upper handle portion adapted to thread with said externally threaded cap stud and an extended annular flange carried by said elongated handle portion extending into and revoluble within said upper portion-handle runway, said flange being vertically movable .within said run-way, the upper face of said elongated handle portion being in non-abutment with said guard when the upper face of said upper handle portion is in abutment with said guard.

SIDNEY'H. BENJAMIN. 

